A civilian oil rig crew is recruited to conduct a search and rescue effort when a nuclear submarine mysteriously sinks. One diver soon finds himself on a spectacular odyssey 25,000 feet below the ocean's surface where he confronts a mysterious force that has the power to change the world or destroy it.

A young Asian American martial artist is forced to participate in a brutal formal street-fight competition.

A widow's life is thrown into turmoil by her hippie daughter, her rebellious teenage son, and an ill-starred love affair she is having with a much younger man -- and then a former suitor comes back into the picture.

When a decaying Russian satellite crashes on the island, the Professor uses a key component for a barometer. With that device, he learns that a massive wave is going to swamp the island. In desperation, the castaways lash their huts together into one structure in order to have any chance to ride the disaster out.